Inside Facebook's virtual reality chat room

Facebook is developing a virtual-reality chat room, which it hopes will be the most "Immersive" way for people to communicate online. It is promoting the software for its Oculus Rift kit, which has struggled against competition from PlayStation VR and HTC Vive. The BBC's Chris Foxx asked Facebook's Rachel Franklin why people would prefer to make a virtual reality call, rather than a regular video call.